Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities
Net loss	$ (38,882)	$ (24,220)
Adjustments to reconcile net loss to net cash used in operating activities
Impairment of goodwill	14,740	2,797
Depreciation	2,185	3,748
Amortization of internally developed software	2,871	2,671
Amortization of intangible assets	1,939	2,151
Loss (gain) on disposals of property and equipment	3	(11)
Amortization of deferred costs to obtain and fulfill contracts	1,624
Unrealized foreign currency (gains) losses	(12)	795
Non-cash interest expense related to debt agreements		15
Stock-based compensation related to equity awards and restricted stock	2,933	3,683
(Recovery from) provision for bad debts	(194)	1,040
Changes in operating assets and liabilities
Accounts receivable	3,773	4,798
Prepaid expenses and other assets	(824)	(1,057)
Accounts payable	(751)	(692)
Accrued expenses and other liabilities	(181)	27
Net cash used in operating activities	(10,776)	(4,255)
Investing activities
Purchases of property and equipment	(580)	(351)
Proceeds from disposal of property and equipment	3	11
Capitalization of internally developed software	(1,693)	(1,398)
Net cash used in investing activities	(2,270)	(1,738)
Financing activities
Repayments of capital lease obligations	(971)	(788)
Employee taxes paid for withheld shares upon equity award settlement	(137)	(212)
Proceeds from employee stock purchase plan, net	249	215
Net cash used in financing activities	(859)	(785)
Effect of foreign exchange rate changes on cash and cash equivalents and restricted cash	(242)	1,714
Net decrease in cash and cash equivalents and restricted cash	(14,147)	(5,064)
Cash and cash equivalents and restricted cash
Beginning of period	28,837	35,713
End of period	14,690	30,649
Supplemental disclosure of non-cash investing and financing activities
Issuance of common stock under employee stock purchase plan	172	130
Purchases of property and equipment recorded in accounts payable and accrued expenses	2	693
Acquisition of equipment through capital leases		$ 181